Fuel-oil-burning apparatus



E. B. GLENDENNXNG FUEL OTL BURNING APPARATUS 2 Sheets-Sheet '1 Filed Dec. 12, 1925 INVENTOR.

A TTORNEY LSZWIEGE E. B. GLENDENNENG FUEL OIL BURNING APPARATUS Filed Dec. 12, 1925 2 Sheets-Sheet 2 ATTORNEY Patented eb. 10, 1925.

UNITED STATES PATENT OFFICE.

EVERETT B. GLENDENNING, 0F BOSTON, MASSACHUSETTS, BY OPERATION LAW TO RALPH H. CAHOUE'I', TRUSTEE IN BANKRUPTCY OF MCTARNAHAN FUEL OIL BURNING CORPORATION, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

FUEL-OIL-BURNING APPARATUS.

Application filed December 12, 1923. Serial No. 680,245.

To all whom it may concern:

Be it known that I, EVERETT B. GLl-INDEN- NING, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Fuel- Oil-Burning Apparatus, of which the following is a specification.

The invention to be hereinafter described relatesto fuel oil burning apparatus, and more particularly to an improvement in burners.

In practice it is necessary from time to time to move the burner to and from active firing position in which its fuel delivery end projects into a furnace. One ofthe purposes of the inventiomtherefore, is to provide simple, efficient means for detachably securing the burner or gun on a support.

In the present instance, the gun is of the high pressure type in which the fuel oil is atomized by and mixed with steam or compressed air. The gun has a passage for conducting the'fuel oil and a passage for conducting the atomizing fluid, and the support has connected therewith a pipe for conducting fuel oil to the fuel oil passage of the gun, and also connected therewith a pipe for conducting atomizing fluid to the atomizing fluid passage of the gun. Another purpose of the invention is to provide means for preventing leakage of the fuel oil and atomizing fluid passing from the pipes into the passages of the gun.

The gun is slid on and along the support to and from its active firing position. Therefore, another purpose of the invention .is to provide means for preventing the sliding movements of the gun from injuring leak preventing gaskets or seats on the support. Y

After the supply of fuel oil to the gun has been shut off, some residual oil will remain in the oil conducting passages of the gun, and if allowed to remain therein, would become carbonized and objectionably obstruct said passages. Another purpose of the invention, therefore, is to provide simple and efficient means for driving the residual oil from the passages in the gun, thereby to maintain the same clear and unobstructed for eflicient operation. In carrying this. feature of the invention into practical effect,

in the present instance, the support is provided with a duct and a valve whereby the atomizing fluid may be delivered from the atomizing fluid conducting pipe into the fuel and that the atomizing fluid shall meet the fuel oil with high velocity and desirable distribution, and that the construction shall be such that the flame issuing from the burner shall have wide spread for efficient heating effect. Another purpose of the invention, therefore, is to provide the burner with simple and efficient means for mixing the fuel oil and the atomizing fluid for the purposes above set forth.

The character of the invention may be best understood by reference to the following description of one good form thereof shown in the accompanying drawings, wherein:

Fig. 1 is a plan of the apparatus;

Fig. 2 is a side elevation of the apparatus;

shown therein as one good form of the in vention, comprises a support 1 formed to provide a seat 3, in the present instance, having a flat bottom. At the lower side of the support is a boss 5 having a passage 7, and threaded into said boss is a pipe 9 for conducting fuel oil to the passage 7. Also, projecting from the under side of the support is a boss 11 having a passage 13, and

Fig. 3 is a vertical longitudinal section threaded into said boss is a pipe 15 for conducting steam or other atomizing fluid to the passage '13. Projecting from the front end of the support is a curved seat 17, and

at one end ofthis seat is a flange 19, said seat 17 and the boss 11 being strengthened by a web 21. Projecting upward from the rear end of the support is a lip or rest 23 for a purpose to be described.

The burner or gun, in the present instance of the invention, comprises a breech '25 having a flat base 27 and of a length such that it may seat between the flange 19 and the lip 23 of the support. The breech is formed to provide a chamber 27, a fuel oil conducting port or passage 9.9, and an atomizing fluid conducting port or passage 31. These ports open at one side of the breech.

Threaded into the breech 25 and communicating with the chamber 27, is one end of a barrel 0r casing 32, and threaded to the opposite end of the barrel is a tip 33 containing a mixing device to be described. Mounted in the barrel is a pipe having one end threaded into the breech and com municating with the fuel oil passage 29 referred to. The pipe 35 is smaller than the barrel 32, and is spaced therefrom to provide an atomizing fluid conducting passage 37. Projecting rearward from the breech, and desirably formed integral therewith, is a handle 38 which may be grasped in moving the gun to and from the support.

To prevent the fuel oil flowing from the pipe 9 and the support passage 7 into the gun passage 29, from leaking at the juncture of the breech bas with the support, the latter may be provided with a recess 39 surrounding the passage 7 and adapted to receive a gasket 41 of lead or other suitable material. To prevent the atomizing fluid, flowing from the pipe 15 and the support passage 13 into the gun passage 31. from leaking between the base of the gun and the support, the latter may be provided with a recess 43 encircling the passage 13 and receiving the gasket 45 of lead or other suit able material.

'hen the gun is to be placed on the support in firing position. the gun is presented to the support so that it rests in inclined position in engagement with the curved seat '17 and the upper edge of the lip 23. The

gun is slid forwardly along the seat and lip until the front end of the breech is brought into engagement with the flange 1.). Then the rear end of the breech has escaped from the lip :23, and the gun may be rocked down to a horizontal position in which the base of the breech will rest on the gaskets -11 and 4-3, which serve as a seat.

The means for holding the breech down in tight engagement with the seat. in the present instance of the invention. comprises a yoke 47 having one end pivotally connected by a pin 49 with ears 51 rising from the support. This yoke extends across the breech transversely to the longitudinal axis of the gun, and the opposite end. of the yoke is formed to provide a fork 53. A latch device or arm 55 1S pivotally connected to the front end of the support by a pin 57, and said arm has a flange 59 and a handle 61. hen this arm is rocked to vertical position, it will enter the fork 53, and its flange 5!) will be in position to engage the upper side of the fork 53. A screw is-threaded into the yoke at a point midway between the ends thereof, and is adapted to engage thetop of the breech, said screw being provided with a hand wheel 65.

The construction is such that after the gun has been presented to the support as described, the yoke 47 may be rocked over the breech, and the. arm 55 may be rocked upward into the fork of'the yoke. Then the hand wheel may be turned to rotate the screw 63, and the latter will react on the yoke and press the breech downward so that its bottom is in tight engagement with the gaskets. \Vheu it is desired to remove the gun from the support, the screw 63 is released, and the arm 61 is rocked outof the yoke fork, thereby permitting the yoke to be rocked away from the breech, and permitting the gun to be lifted from the support.

The means for driving residual oil from the fuel oil passage of the gun, in the present instance, comprises a duct in the support extending between the fuel oil conduct-c ing passage 7 and the atoi'nizing fluid conducting passage 13. This duct may be conveniently formed by a bore 6? cutting through the passage 7. a bore 69 cutting through the passage 13, and a bore 71 extending transversely to and connecting the bores 67 and 69, said bore 71 forming a continuation of a larger bore '73. The outer end of the bore 6? may be closed by a plug 75, and the outer end of the bore (3.) may be closed by a plug. 77.

Threaded in the bore 73 is a gland 79 having a nut 81 formed therein adapted to engage a side of the support. Threaded into the gland a stem 83 having a tapered end serving as a valve adapted to fit into a similarly shaped seat 87 at one end of the cross bore 71. Fast on the opposite end of the stem is a hand wheel 89. To prevent leakage along the stem, a nut 91 may be threaded on the gland, and may be recessed to receive suitable packing material.

The construction is such that after the supply of fuel oil to the burner has been shut oil, the hand wheel 8.) may be turned so as to unseat the valve and permit atomizing fluid to pass from the passage 13 through the bores 69. 71 and 57 to the oil conducting passage 7 in the support.

The atoi'uizing fiuid may pass thence throt'igh the port and the pipe- 35. and drive out therefrom any residual oil which may remain therein after shutting 03 the fuel oil .ent instance of the invention, comprises a member 93 having a hollow body 95 of general cylindrical form, and smaller in diameter than the internal diameter of the tip 1 33 referred to. The body 95 contains av chamber 97 having one end closed and its other endtapped for threaded engagement with the outer end of the fuel oil conducting pipe 35. Projecting outward from the body 95 are ribs or vanes 99 adapted to fit into the tip, and said vanes are tapered to provide converged passages or ducts 101 having medial lines substantially parallel to the longitudinal axis of the barrel 31. Formed in the body at the narrower ends of the converged passages 101 are small holes 103 communicating with the chamber 97. The body 95 projects outward a substantial distance beyond the narrower ends of the converged passages, and has an outward circumferential projection 105. A. nut 10? is formed on the outer end of the body, and is adapted to receive a tool for screwing the body onto and off from the pipe 35. The outer end of the tip is slabbed off, and an elongated orifice 109 is formed therein.

The construction of the device is such that the flowing through the passage 37 will flow through the converged passages 101, and on issuing therefrom with velocity increased by said passages, will meet the streams of oil issuing through the small holes 103. The oil and atomizing fluid will be effectively mixed, and the oil will be atomized. The circumferential projection 105 will further promote atomization of the oil. The mixtuie will flow thence out through the orifice 109 and will flare outward and produce a flame of wide spread for eflicient heating efiect. Since the medial lines of the converged passages 101 are substantially parallel to the longitudinal axis of the gun barrel, the mixed oil and atomizing fluid will not have a whirl or rotative effect, and consequently the flame will have a uniform spread on issuing from the orifice.

It will be understood that the invention is not limited to the specific embodiment shown, and that various deviations may be made therefrom without departing from the spirit and scope of the appended claims.

What is claimed is: v

1. Fuel oil burning apparatus comprising, in combination, a support, a fuel oil gun adapted to slide along the support to and from active firing position, said gun and support having passages for conducting fuel oil and atomizing fluid, means to secure the gun to the support with the open ends of .the gun passages H1 registration withthe open ends of the support passages, and a member on the support projecting outward from the plane of the open ends of the support passages and adapted to prevent the gun from engagement with the portion of the support at the open ends of the support passages when the gun is slid along the support to and from firing position.

2. A fuel oil gun comprising, in combination, a breech, a barrel connected to the breech, a pipe in the barrel for conducting fuel oil and spaced from the barrel to provide an atomizing fluid conducting passage, a tip connected to the barrel and having an orifice, and a member mounted in said tip and connected to said pipe, said member having a series of vanes projecting outward therefrom to the inner surface of the tip, said vanes being formed to provide tapered passages converged toward the outer end of the tip and having their medial lines substantially parallel to the longitudinal axis of the barrel, and said member having a passage communicating with the fuel oil pipe and having small holes at the apexes of the converged passages, thereby to deliver fuel oil streams into the atomizing fluid streams emerging from the converged passages.

3.-A fuel oil gun comprising, in combination, a breech, a barrel connected to the breech, a pipe in the barrel for conducting fuel oil and spaced therefrom to provide an atomizihieig fluid conducting passage, a tip connec to the barrel and having an orifice, and means for mixing the fuel oil and the atomizing fluid comprlsinga hollow member in the tip connected to the pipe and communicating therewith, said member being formed to provide a series of converged passages having their medial lines substantially parallel with the longitudinal axis of the barrel, and said member having holes at the apexes of the converged passages fordelivering oil streams to the atomizing fluid streams issuing from the converged passages.

4. A fuel oil gun comprising, in combination, a breech, a barrel connected to the breech, a pipe in the barrel for conducting fuel oil andspace'd therefrom to provide an .atomizing fluid conducting passage, a' tip connected to the barrel and having an orifice, means for mixing the fuel oil and the atomizing fluid comprising a hollow member in the tip connected to the pipe and communicating therewith, said member being formed to provide a series of converged passages having their medial lines substantially parallel with the longitudinal axis of the barrel, and said member having holes at the apexes of the converged passages for delivering oil streams to the atomizing fluid streams issuing from the converged sages, and an outstanding circumferential projection .on the member beyond said holes for promoting atomization of the fuel oil.

5. A fuel oil burner comprising, in combination, a casing having fueloila-nd atomizing fluid conducting passages, and means for mixing the fuel oil and atmi'iizing fluid comprising a tip having an orifice, a hollow member in the tip connnunicating with the fuel oil passage, said member having a series of tapered ducts con'imimicating with the fluid passage and the tip. said ducts ha ving their medial lines substantially parallel with the longitudinal axis of the casing. and said member having holes at the apexes of the tapered ducts for delivering oil streams to the fluid streams entering the tip from the ducts.

6. Fuel oil burnii'ig apparatus comprising. in combination, a support having a seat, and a pair of passages opening at the seat and adapted for communication with fuel oil and atomizing fluid conducting pipes, a fuel oil gun adapted to slide along said support to and from active firing position on said seat, said gun having a pair of ports at one side thereof for communication with the passages in the support, and means to press the gun tightly againstthe seat thereby to hold the gun in firing position and prevent leakage at the juncture of the gun ports with the support passages, said support having a lip projecting up from the seat and adapted to prevent the gun from engaging the seat while it is sliding to and from firing position.

7. Fuel oil burning apparatus comprising, in combination, a support having a seat, and a pair of passages opening at the seat and adapted for communication with fuel oil and atomizing fluid conducting pipes, a fuel the seat of the support, said yoke being movable t'rom its secured position to permit the gun to be lifted up from the seat and away from the support.

'8. Fuel oil burning apparatus comprising, in combination, a support having a pair of passages adapted -l 'or communication with fuel oil and atomizing fluid conducting pipes, a gun having fuel oil and atomizing fluid conducting passages with ports for communication with the passages of the sup port, and means for clearing residual oil from the gun comprising a' pair of straight bores in the support, one of'saicl bores extending transversely to and communicating with one of the support passages, and the other of said bores extending transversely to and communicating with the other support passage, and valve means in the support for establishing communication between said straight bores, thereby to permit the atomizing fluid to pass from the atomizing fluid pipe through said bores into the fuel oil passage of the gun and drive residual oil therefrom.

EVERETT B. GLENDENNING. 

